Showerhead



FIG. 1 is a bottom, front, left perspective view of a showerhead showing my new design;

FIG. 2 is a top, rear, right perspective view thereof;

FIG. 3 is a front elevation view thereof;

FIG. 4 is a rear elevation view thereof;

FIG. 5 is a left side elevation view thereof;

FIG. 6 is a right side elevation view thereof;

FIG. 7 is an enlarged top plan view thereof; and,

FIG. 8 is an enlarged bottom plan view thereof.

The broken lines in the drawings illustrate portions of the showerhead that form no part of the claimed design. 

CLAIM The ornamental design for a showerhead, as shown and described. 